SLING-7936 - Execute module integration tests in the launchpad-testing module

Deploy a jar with tests. To make sure only the needed ITs are executed, explicitly
list want we want to include. Legal files must be there, of course.
diff --git a/pom.xml b/pom.xml
index dee4e96..e604fe4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -51,6 +51,23 @@
     <build>
         <plugins>
             <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-jar-plugin</artifactId>
+                <executions>
+                    <execution>
+                        <goals>
+                            <goal>test-jar</goal>
+                        </goals>
+                        <configuration>
+                            <includes>
+                                <include>META-INF/**</include>
+                                <include>**/*IT.class</include>
+                            </includes>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+            <plugin>
                 <groupId>org.apache.felix</groupId>
                 <artifactId>maven-bundle-plugin</artifactId>
                 <extensions>true</extensions>